Web Reference: Sep 1, 2021 · You cannot write a specific annotation for the catch clause variable in Typescript, because in Javascript a catch clause will catch any exception that is thrown, not just exceptions of a specified type. See full list on typescript.tv Feb 28, 2024 · The error "Catch clause variable type annotation must be 'any' or 'unknown'" occurs when we try to type the error variable in a catch block. To solve the error, remove the typing and use a type guard to check if the error is of a specific type, e.g. if (err instanceof Error){}.
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